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89 lines
2.7 KiB
TypeScript
89 lines
2.7 KiB
TypeScript
import type { TypedDataSigner } from '@ethersproject/abstract-signer';
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import { BigNumber } from 'bignumber.js';
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import type { ethers } from 'ethers';
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import { joinSignature, splitSignature } from 'ethers/lib/utils.js';
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import { INTERNAL_PROTOCOL_PRECISION } from '../constants/index.js';
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import ORDER_TYPES from '../constants/orderTypes.js';
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import type { Order, SignedOrder, SupportedChainId } from '../types.js';
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import normalizeNumber from '../utils/normalizeNumber.js';
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import getDomainData from './getDomainData.js';
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import hashOrder from './hashOrder.js';
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import signOrderPersonal from './signOrderPersonal.js';
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const DEFAULT_EXPIRATION = 29 * 24 * 60 * 60 * 1000; // 29 days
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type SignerWithTypedDataSign = ethers.Signer & TypedDataSigner;
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export const signOrder = async (
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baseAssetAddr: string,
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quoteAssetAddr: string,
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side: 'BUY' | 'SELL',
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price: BigNumber.Value,
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amount: BigNumber.Value,
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matcherFee: BigNumber.Value,
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senderAddress: string,
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matcherAddress: string,
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serviceFeeAssetAddr: string,
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usePersonalSign: boolean,
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signer: ethers.Signer,
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chainId: SupportedChainId,
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isReversedOrder = false
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) => {
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const nonce = Date.now();
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const expiration = nonce + DEFAULT_EXPIRATION;
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const order: Order = {
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senderAddress,
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matcherAddress,
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baseAsset: baseAssetAddr,
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quoteAsset: quoteAssetAddr,
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matcherFeeAsset: serviceFeeAssetAddr,
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amount: normalizeNumber(
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amount,
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INTERNAL_PROTOCOL_PRECISION,
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BigNumber.ROUND_FLOOR,
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).toNumber(),
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price: normalizeNumber(
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price,
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INTERNAL_PROTOCOL_PRECISION,
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BigNumber.ROUND_FLOOR,
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).toNumber(),
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matcherFee: normalizeNumber(
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matcherFee,
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INTERNAL_PROTOCOL_PRECISION,
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BigNumber.ROUND_CEIL, // ROUND_CEIL because we don't want get "not enough fee" error
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).toNumber(),
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nonce,
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expiration,
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buySide: side === 'BUY' ? 1 : 0,
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isPersonalSign: usePersonalSign,
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isReversedOrder
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};
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// eslint-disable-next-line @typescript-eslint/consistent-type-assertions
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const typedDataSigner = signer as SignerWithTypedDataSign;
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const signature = usePersonalSign
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? await signOrderPersonal(order, signer)
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: await typedDataSigner._signTypedData(
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getDomainData(chainId),
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ORDER_TYPES,
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order,
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);
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// https://github.com/poap-xyz/poap-fun/pull/62#issue-928290265
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// "Signature's v was always send as 27 or 28, but from Ledger was 0 or 1"
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const fixedSignature = joinSignature(splitSignature(signature));
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// if (!fixedSignature) throw new Error("Can't sign order");
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const signedOrder: SignedOrder = {
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...order,
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id: hashOrder(order),
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signature: fixedSignature,
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};
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return signedOrder;
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};
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export default signOrder;
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